Hand-held pen-based computer



FIG. 1 is a front view of the hand-held pen-based computer showing ournew design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The ornamental design for a hand-held pen based computer, as shown.